Zero

You have to look at trends, and I can speak for the US. The trends are more people are single than ever before, more people are living alone than ever before. Less people are having children and I imagine cooking and hosting events is less common and will continue to be less common. So, I see lots of high density housing and apartments. People will care less about amenities that most of the residents don’t use and value will be derived from such housing close to jobs, restaurants and improved sound insulation between the units.

I think the most immediate replacement will be customer service type functions. You have chat bots that are designed to answer certain questions. If you were to add actual artificial intelligence to this process, you could eliminate human customer service in many areas.